Английская Википедия:HD 114762 b
Шаблон:Short description Шаблон:Distinguish Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox astrometry Шаблон:Starbox orbit Шаблон:Starbox detail Шаблон:Starbox reference Шаблон:Starbox end
HD 114762 b is a small red dwarf star, in the HD 114762 system,[1] formerly thought to be a massive gaseous[2][3] extrasolar planet,[4] approximately Шаблон:Convert away in the constellation of Coma Berenices.[5][2] This optically undetected companion to the late F-type main-sequence star HD 114762 was discovered in 1989 by Latham, et al.,[3] and confirmed in an October 1991 paper by Cochran, et al.[6] It was thought to be the first discovered exoplanet (although its existence was confirmed after those around PSR B1257+12.)
The object orbits the primary star every 83.9 days at an approximate distance of 0.37 AU,[1] with an orbital eccentricity of 0.57;[1] for comparison, this orbit is similar to that of Mercury but with almost three times the eccentricity.[1] Based on the radial velocity measurements alone, it was estimated to have a minimum mass of Шаблон:Jupiter mass (at 90°)[7] and a probable mass of approximately Шаблон:Jupiter mass (at 10°).[8] However, analysis of its astrometric perturbation of its host star in 2019 found it to have an extremely low inclination of only Шаблон:Val degrees, giving it a true mass of Шаблон:Jupiter mass and putting it well outside of the range of planetary masses (less than Шаблон:Jupiter mass).[1]
Шаблон:Nowrap was thought for a time to be the first extrasolar planet ever detected, predating the 1992 pulsar planets found around PSR B1257+12 and main-sequence yellow dwarf 51 Pegasi.[9][10] However, now that it has been found to not be a planet, the planets found orbiting PSR B1257+12 were indeed the first exoplanets ever found.[1]
At an event celebrating the career of discoverer David Latham and attended by his colleagues and collaborators, the object was informally dubbed "Latham's Planet".[11] However, this name has no official standing with the International Astronomical Union.
See also
References
Шаблон:SkyШаблон:Coma Berenices Шаблон:Red-dwarf-stub
- ↑ 1,0 1,1 1,2 1,3 1,4 1,5 Ошибка цитирования Неверный тег
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<ref>; для сносокNorth2003не указан текст - ↑ 3,0 3,1 Ошибка цитирования Неверный тег
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<ref>; для сносокButler2006не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокCochran1991не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокwangне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокKane2012не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокHale1995не указан текст - ↑ Ошибка цитирования Неверный тег
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<ref>; для сносокJohnson2016не указан текст
